Wow, sounds like you've got quite the restoration project ahead of you!

First question: is your machine a true Orthophonic School model, or an
Orthophonic Model 8-9 (the home version of the machine)?  I have an 8-9,
which is pictured on my site <http://members.aol.com/vapianola>.  The
school version differs in having simpler cabinet doors, less poly-
chroming on the cabinet, two big rubber wheels on the lower back, and
a metal handle across the top back.

Duplicating the doors will be difficult and expensive for either model,
since the doors are  large, quarter-sawn, polychromed, and gilded oak
paneled doors with fancy carved pulls (on the 8-9).  By "tone arm tower"
I assume you mean the tone arm back mount.  Some Orthophonics had this
pot-metal piece, others (such as the one in my collection) had a ball-
bearing mount. The back mount often becomes brittle and breaks, but
replacements are available.  Turntables and reproducers are also
available, especially at phonograph shows.

One thing you should consider though: this model phonograph can be found
in complete, good condition for between $350-650.  The cost of purchas-
ing an Orthophonic reproducer in good shape is going to set you back at
least $150.  The correct tone arm possibly will cost $75 or more.  (Most
of them are not interchangeable; you must find one from a similar
model.)

The back mount replacement will cost maybe $50, and the turntable at
least that much.  Having the doors made (unless you are a professional
cabinet maker) and the whole cabinet refinished and polychromed to match
the original will cost ... who knows?

Not to dissuade you from your project, but the cost to restore your
phonograph will probably be far more than the cost to purchase another,
intact one.  This model Orthophonic is not the most common, but I
regularly see them for sale at phonograph shows.

Jim Canavan
Alexandria, VA
cybrflash@aol.com
http://members.aol.com/vapianola